/Engine/Source/Developer/SharedSettingsWidgets/Public/ManifestUpdateHelper.h
Replace a key in the manifest (between MatchPrefix and MatchSuffix) with NewInfix.
void ReplaceKey ( const [FString](API\Runtime\Core\Containers\FString) & MatchPrefix, const [FString](API\Runtime\Core\Containers\FString) & MatchSuffix, const [FString](API\Runtime\Core\Containers\FString) & NewInfix )